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What is Chromium?
Chromium is a chemical that occurs naturally in rock but is often found in surface waters due to industrial waste discharges. The latter is considered more hazardous but because it is difficult to distinguish by analysis, therefore total chromium concentrations are reported. In the Drinking Water Regulations, it is defined as a Chemical parameter. Its presence in water would indicate industrial and domestic chromium waste discharges or from contaminated land.
What is an exceedance for Chromium?
The limit set out in the drinking water directive for Chromium is 50?g/l. Therefore, any result above this level is an exceedance for Chromium.
What can cause a Chromium exceedance?
The presence of Chromium exceedances in drinking water suggests that there has been a pollution occurrence at the abstraction source.

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